2.25" hose for shopvac

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Forum topic by ztill posted 02-05-2013 08:50 AM 6633 views 1 time favorited 11 replies Add to Favorites Watch
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4 posts in 1210 days

02-05-2013 08:50 AM

Topic tags/keywords: dc shopvac

Hi Folks -

I am moving toward getting a HF DC, but for now want to attach a pre-separator to my shopvac from lowes I measured the diameter of the opening on the vac and it is 2.25” wide. I’ve searched quite a bit on google for anyplace selling a hose for a reasonable price, but have no luck. Would any of you have any recommendations where I can get this?

- One option is to use a 2.25 to 4 convertor and use 4” all around, but I suspect the suction will reduce significantly.

11 replies so far

View kdc68's profile


2508 posts in 1549 days

#1 posted 02-05-2013 11:45 AM

Shop vac hoses are generaly 2-1/2” or 1-1/4”, depending on the shop vac. If the hose to your vac is the 2-1/2” size then it sounds like you need to go from 2-1/2 down to a 2-1/4 to fit your separator.

Check Grizzly Industrial
Hose- 2-1/2×10’ .....Item #D4212…...for $11.95
Couple – 2-1/4 -2-1/2 ….Item #D4246….for $1.50
Hose Adapter – 2-1/4 – 2-1/2…Item #W2046…for $3.95

-- Measure "at least" twice and cut once

View ztill's profile


4 posts in 1210 days

#2 posted 02-05-2013 01:12 PM

Thanks for the helpful information kdc68.

Wanted to clarify a minor detail (I am measuring twice before I buy :) )

I have seen multiple posts that have said hoses are usually 2-1/2” or 1-1/4”. The shopvac spec says it is 1-1/4” and it is on the sucking end. However, I measured the OD (using calipers) of the male hose where is connects to the vac itself, I got ~ 2.25”. Perhaps the opening on the can is tapered and can accept a 2.5”. Not sure if anyone has any knowledge on this.

For the part # you have provided for the grizzly, when they say 2-1/4” – do they mean the OD?

View Paul Stoops's profile

Paul Stoops

336 posts in 1834 days

#3 posted 02-05-2013 05:11 PM

The shop vac you linked to from Lowes specifies 1 1/4” hose! Is that a misprint? I thought I had seen 2 1/4” shop vac hose in lengths at Lowes.

-- Paul, Auburn, WA

View ztill's profile


4 posts in 1210 days

#4 posted 02-05-2013 05:24 PM

Paul – It is 1-1/4” on the OD of sucking end (where you attached the cleaning accessories to).

View OggieOglethorpe's profile


1106 posts in 1383 days

#5 posted 02-05-2013 07:46 PM

I have two vacs, one with 1 1/4” and another with 2 1/2” hose. My 1 1/4” vacuum has the same port as yours, it’s smaller than 2 1/2”, but much bigger than the rest of the hose.

What about using 2” PVC between the vac and separator? You could build up a layer of weatherstripping and/or hockey or handlebar tape at the vac end, which would make it easily removable. Simply wind on layers until you get a press fit. At the separator end, you could use a standard PVC flange, or a short section of bicycle inner tube and hose clamps.

Put both items on a flat board with 4 wheels, and roll it where you need it. Need the vac alone? Unplug the 2” pipe, and walk away with the vacuum.

View kdc68's profile


2508 posts in 1549 days

#6 posted 02-05-2013 09:59 PM

ztill....ok….gotcha….I have the Grizzly hose adapter (W2046). One end the OD is 2-1/4”, so it should fit the hole in your vac. The other end the OD is 2-1/2” and will fit a 2-1/2” hose.

-- Measure "at least" twice and cut once

View BroncoBrian's profile


434 posts in 1231 days

#7 posted 02-05-2013 10:06 PM

in case you have easier access to it, pool hose (available at any pool supply store) comes around that size and is smooth on the inside yet flexible.

-- Bigfoot tries to take pictures of me

View MT_Stringer's profile


2740 posts in 2504 days

#8 posted 02-05-2013 10:10 PM

@OP – I have the Shop Vac with 2 1/4 inch hose. I hooked a dust Deputy to it and it worked pretty good. However, I have lately plumbed in a 4 inch manifold to my table saw with a couple of 45 deg “y”, one of which is a 2 1/4 into 4 inch (for the router table). But still the final connection to the Dust Deputy is 2 1/4”. My suction has suffered considerably. I am also thinking seriously about upgrading to a bigger dust collector.

Note: My setup works OK for the table saw but can’t keep up with the jointer or planer.
Note 2: There is no dust in the shop vac and the filter is clean!

-- Handcrafted by Mike Henderson - Channelview, Texas

View ztill's profile


4 posts in 1210 days

#9 posted 02-06-2013 12:01 AM

@kdc68 Appreciate your assistance on this. I would need a short (2 feet) hose to go from the vac to the separator. Is there a short one you’d recommend? I will get the D4212 hose to suck in the dust. I am not sure if there are going to be any fitting problems if I cut this long hose.

@MT_Stringer: Thanks for that info – I’ll stick with 2.5” hose for now. I will get a DC very soon.

View kdc68's profile


2508 posts in 1549 days

#10 posted 02-06-2013 12:39 AM

ztill..Well…here is some info on short 2-1/2 hose
—-Rocklers has a 2-1/2” flex form hose. Expands from 12” to 36” and holds it shape. I have one on my drill press and works well. The cost is $17.19. Item # is 29996. Rocklers also has the same hose in a kit. Includes 2 hose fittings for shop vac and 2 nozzles for $21.19. Item# 33646
—-Peachtree offers similar hose, $12.99 item #0482. And a similar kit, $19.99 item#0501
—-Woodcraft offers three kits. Similar to ones above. Item#’s 150512 $20.99,#153515 $15.79,or #149580 $16.79.
I have recent catalogs here at my computer desk, so pricing should be right. If I was you, since it sounds like your are gonna order from Grizzly anyway, and if you don’t want a “flex” hose, I’d order 2 of the 10’ hoses. (Which would be cheaper) Take one 10 foooter and cut off what you need and save the rest for down the road. This way you make one order, pay shipping once, and get it all at the same time…
FYI…if you cut down the 10 footer, make a nice clean cut with a sharp utility knife. I’ve done it….Don’t forget hose clamps, if you don’t have them already

-- Measure "at least" twice and cut once

View Marty5965's profile


158 posts in 1218 days

#11 posted 02-06-2013 06:05 PM

Just to muddy the already murky waters a little more; I ordered a 4” to 2-1/2” adapter online to connect my TS to my shopvac hose and it was exactly that, the 4” end matched my port exactly, I had to buy a tapered fitting from Woodcraft to attach it. It was only $4.75 but it was disappointing.

-- Marty, Columbus, OH, learning every day....

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